1988 RS LS1 smog legal
#1
Junior Member
Thread Starter
Join Date: Jan 2008
Location: LA CA
Posts: 18
Likes: 0
Received 0 Likes
on
0 Posts
Car: 88 black RS
Engine: 04 GTO crate LS1
Transmission: 4L60E
Axle/Gears: 3.73:1
1988 RS LS1 smog legal
i started a project last summer...it's going slowly, but going..so far what we've done - the car has 2004 GTO LS1, 4L60E, 4th gen rear, bilstein shocks, eibach pro springs, upgraded suspension bushings, tie rods etc, customised a/c housing (didnt clear one of the coils), customised brake lines, cracked windshield, old parts in the trunk and in need of new paint...and now the fuel lines have to be cut to match with ls1 fuel lines, i'm going after factory look under the hood)))...and i get to use 4th gen fuel tank with evap on it...smog legal nice daily driver it would be..
#3
Junior Member
Thread Starter
Join Date: Jan 2008
Location: LA CA
Posts: 18
Likes: 0
Received 0 Likes
on
0 Posts
Car: 88 black RS
Engine: 04 GTO crate LS1
Transmission: 4L60E
Axle/Gears: 3.73:1
Re: 1988 RS LS1 smog legal
its not representable, but ill find some good ones
Last edited by 1988RSLS1; 01-17-2008 at 09:18 PM.
#4
Member
Join Date: Apr 2006
Location: San Jose, CA
Posts: 108
Likes: 0
Received 1 Like
on
1 Post
Car: 1989 Camaro RS (w/Z28 tags)
Engine: 305CID TBI
Transmission: Manual - T-5
Axle/Gears: Stock
Re: 1988 RS LS1 smog legal
Can you get some pictures of the exhaust setup and how you got the smog stuff hooked up? The smog components are my biggest worry doing this swap and would like to see some ideas.
#5
Junior Member
Thread Starter
Join Date: Jan 2008
Location: LA CA
Posts: 18
Likes: 0
Received 0 Likes
on
0 Posts
Car: 88 black RS
Engine: 04 GTO crate LS1
Transmission: 4L60E
Axle/Gears: 3.73:1
Re: 1988 RS LS1 smog legal
exhaust is far far in the future, still cutting lines for the fuel.they snapped the fuel pump harness at the junk yard, and now i have to find a new one, be....
i'll be running Edelbrock shorty headers, stock cats, stock conversion pipe and Edelbrock Cat back, if it's of any help..
are you going to leave evap up front, or are you using a 4th gen tank?
i'll be running Edelbrock shorty headers, stock cats, stock conversion pipe and Edelbrock Cat back, if it's of any help..
are you going to leave evap up front, or are you using a 4th gen tank?
#6
Member
Join Date: Apr 2006
Location: San Jose, CA
Posts: 108
Likes: 0
Received 1 Like
on
1 Post
Car: 1989 Camaro RS (w/Z28 tags)
Engine: 305CID TBI
Transmission: Manual - T-5
Axle/Gears: Stock
Re: 1988 RS LS1 smog legal
If I can get my hands on a 4th gen tank, might as well swap it in and clean up the engine bay some right? The reason I asked about the exhaust is because doesnt the LS1 use something like 4 O2 sensors? I was just wondering how you did that up? Also, the rest of the smog stuff fit right in with no issues?
#7
Moderator
iTrader: (14)
Join Date: Mar 2000
Location: Littleton, CO USA
Posts: 43,169
Likes: 0
Received 36 Likes
on
34 Posts
Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I'm still working mine up, but I found a 4th gen tank complete on eBay for less than the cost of a new pump. The evap on the tank should help clean up the engine bay.
The rear O2 sensors are for monitoring only, not feedback. You can tune them out of the PCM.
The rear O2 sensors are for monitoring only, not feedback. You can tune them out of the PCM.
Trending Topics
#8
Junior Member
Thread Starter
Join Date: Jan 2008
Location: LA CA
Posts: 18
Likes: 0
Received 0 Likes
on
0 Posts
Car: 88 black RS
Engine: 04 GTO crate LS1
Transmission: 4L60E
Axle/Gears: 3.73:1
Re: 1988 RS LS1 smog legal
If I can get my hands on a 4th gen tank, might as well swap it in and clean up the engine bay some right? The reason I asked about the exhaust is because doesnt the LS1 use something like 4 O2 sensors? I was just wondering how you did that up? Also, the rest of the smog stuff fit right in with no issues?
yes, LS1 running 4 O2. Edelbrock has a holes in its headers for the front O2, so no worries there, and the stock conversion pipe after CATs should have holes as well..that's theory..as soon as i would have enough money to get all the stuff, i'll see how it goes..i suspect that conversion pipe might require some cutting to fit
as for the rest, it seems so..my engine does not use EGR, and came with all engine sensors, so i just missed an air pump, and O2 (and MAF would be within intake)...i'll see where the air pump must be, and see if its fits there, if not i'll ask my boss...
----------
If you tune rear O2 out, the monitors for CATs would complete and if you leave them out, you might fail Referee inspection. but of course, if you are not after the BAR label, then you can do whatever you want)))
Last edited by 1988RSLS1; 01-23-2008 at 04:47 PM. Reason: Automerged Doublepost
#9
Junior Member
Thread Starter
Join Date: Jan 2008
Location: LA CA
Posts: 18
Likes: 0
Received 0 Likes
on
0 Posts
Car: 88 black RS
Engine: 04 GTO crate LS1
Transmission: 4L60E
Axle/Gears: 3.73:1
Re: 1988 RS LS1 smog legal
VetteC5RFrEak
but before you swap the tank, consider that 4th gen is an OBDII, so it would have a purge and vent solenoids for the evap, and it would run different test on the evap system..
are you planning on running your stock computer?i'm not sure whether it would work or not with a stock computer..i'm doing OBDII upgrade
but before you swap the tank, consider that 4th gen is an OBDII, so it would have a purge and vent solenoids for the evap, and it would run different test on the evap system..
are you planning on running your stock computer?i'm not sure whether it would work or not with a stock computer..i'm doing OBDII upgrade
#10
Moderator
iTrader: (14)
Join Date: Mar 2000
Location: Littleton, CO USA
Posts: 43,169
Likes: 0
Received 36 Likes
on
34 Posts
Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
What do you mean by "stock" computer? Personally, I'm running a "stock" 2000 SS LS1 PCM, but the purge and tank pressure have also been programmed out. That was before I planned on using a 4th gen tank (2001), so I might be putting them back in.
I have the luxury of doing a non-emissions swap, but for emissions-legal, I'd think you'd have to do a 4th gen tank - or, at the very least, it would be a lot easier. Also, for emissions-legal, you'd have to have the rear O2 sensors - basically, you can't program anything out.
I have the luxury of doing a non-emissions swap, but for emissions-legal, I'd think you'd have to do a 4th gen tank - or, at the very least, it would be a lot easier. Also, for emissions-legal, you'd have to have the rear O2 sensors - basically, you can't program anything out.
#11
Junior Member
Thread Starter
Join Date: Jan 2008
Location: LA CA
Posts: 18
Likes: 0
Received 0 Likes
on
0 Posts
Car: 88 black RS
Engine: 04 GTO crate LS1
Transmission: 4L60E
Axle/Gears: 3.73:1
Re: 1988 RS LS1 smog legal
lucky you)
by stock i meant as in no emissions stuff out) ABS can be, but not emissoins..
4th gen tank will make things easier, but you still would have to figure out how to connect your stock lines to the quick connectors on the tank..I modifies all lines..here's some pictures(no fuel filter's pictures, next time)I used compression fittings...
my friend modified a/c housing, so it clears the coils now)
by stock i meant as in no emissions stuff out) ABS can be, but not emissoins..
4th gen tank will make things easier, but you still would have to figure out how to connect your stock lines to the quick connectors on the tank..I modifies all lines..here's some pictures(no fuel filter's pictures, next time)I used compression fittings...
my friend modified a/c housing, so it clears the coils now)
#12
Junior Member
Join Date: Oct 2007
Posts: 65
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1987 Chevrolet Camaro
Engine: 305 ci LG4
Transmission: TH-700R4
Axle/Gears: 2.73 non-Posi
Re: 1988 RS LS1 smog legal
I didn't think that a Californian LS1 swap was possible!! You would only need the emissions equipment for the year of the car your swapping into, right?
#14
Supreme Member
iTrader: (3)
Join Date: May 2004
Location: stockton, CA
Posts: 2,233
Likes: 0
Received 4 Likes
on
4 Posts
Car: Camaro RS/SS
Engine: 5.7 LS1
Transmission: 4L60E Transgo shift kit, 3500 stall
Axle/Gears: 4th Gen Rear 3:42
Re: 1988 RS LS1 smog legal
Its very possible my friend! All you need is the emissions stuff. Cant take short cuts on these swaps. I had fun with mine. Took me 3 times to pass the cali inspection. All because of a pin hole leak on the exhaust. Got to love those O2 sensors
#15
Junior Member
Join Date: Oct 2007
Posts: 65
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1987 Chevrolet Camaro
Engine: 305 ci LG4
Transmission: TH-700R4
Axle/Gears: 2.73 non-Posi
Re: 1988 RS LS1 smog legal
I would think it would be easier to pass Californian inspection with a LS1 swap than an older style engine swap, even though it would be more expensive the way CA emission standards are headed it probably would be the smart thing to do if you plan on keeping your third gen long term.
Thread
Thread Starter
Forum
Replies
Last Post